We largely concur that none of the pulsars identified in [1]} are convincing as trailing partial cones. However, we find several striking examples of this amongst our sample from pulsars discovered post-1988. The most prominent examples are PSRs J0134–2937, J1648–6044 (both shown in Figure REF ) and J2234+2114 with perhaps 2-3 other less convincing cases. In total therefore the trailing partial cones form only a very small minority (\(<5\) %) of the overall population. For pulsars which have \(\phi _0\)  later than the profile midpoint, the majority can be put down to aberration and retardation effects. An example is PSR J0631+1036 (Figure REF ) which has a beautifully symmetric four-component profile yet \(\phi _0\)  occurs significantly later than the symmetric midpoint. Perhaps the two best examples of potential leading partial cones are PSRs J1615–5444 (Figure REF ) and J1847–0605 but again the fraction of this type of pulsar in the data is very low.
